sacs will never share a leaf with other adult T. grallator. Competition for food resources between members of the same brood has not been observed. Siblicide and cannibalism have also not been observed. Parasitism T. grallator experiences high rates of parasitism by wasps in the Baeus genus. These wasps have also been found to parasitize other spiders, including Clubiona robusta. Parasitism contributes to a high rate of egg mortality. The wasp's small egg size may explain the high rates of parasitism of these spiders. Mothers may have a hard time detecting if their egg-sacs have been parasitized. Baeus parasitic behavior occurs even when the mother guards her eggs. References External links The Happy-Face Spiders Image of T. grallator Photo of the Day (with text) – National Geographic – November 12, 2007 Theridiidae Spiders of Hawaii Endemic fauna of Hawaii Biota of Maui Spiders described in 1900 Taxa named by Eugène Simon